Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces underhood temps for increased performance.
| Bolt size |
3/8-16 x 3/4 |
| Brand |
Flowtech Exhaust |
| CARB (California) Compliant |
No |
| Category |
Exhaust |
| Collector Diameter |
3.00 |
| 17 |
Silver |
| 153 |
Long Tube |
| Emission Code |
4 |
| Engine |
Chevrolet Small Block Gen I |
| 200 |
Ceramic Coated |
| Flange Thickness |
5/16" |
| 710 |
0.3125 |
| 3390 |
Performance |
| Header Finish |
Silver Ceramic |
| Header Style |
Long Tube |
| 10 |
Mild Steel |
| part type |
Exhaust Header |
| Primary Tube Dia. |
1-5/8 inch |
| Primary Tubing Diameter |
1-5/8 |
| 10092 |
1.625 |
| Product Type |
Headers |
| Sub Category |
Exhaust Manifolds |
| Tube Material |
Mild Steel |
| Warning |
California Proposition 65 |
| Description_ABR |
HDR CRMC 63- |
| Description_SHO |
HDR CRMC 63-74 CORVE |
| Description_INV |
HDR CRMC 63-74 CORVETTE 265-400 |
| Description_ASC |
Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Please call Flowtech tech service at 270-781-9741 for additional information regarding ceramic coated exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Flowtech does not recommend the use of header wraps as this will void the warranty. |
| Description_DES |
Flowtech Long Tube Header - Ceramic Coated |
| Description_EXT |
Fits 1963-1974 Corvette: 283-400ci Standard Headers Primary Tube Collector Size 1.625 in. x 3 in. |
| Description_MKT |
Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces underhood temps for increased performance. |
| Description_FAB |
Fuel Economy From The Engine |
| Description_FAB |
Leak Test For Max Performance |
| Description_FAB |
Ceramic Headers |
| Description_FAB |
Rust And Corrosion Resistance |
| Description_FAB |
Mandrel-Formed Power Plenum |
| Description_FAB |
Leakproof O-Ringed Port Seals |
| Description_FAB |
Include All Mounting Hardware |
| Year |
Make |
Model |
Submodel |
Notes |
| 1963 |
Chevrolet |
Corvette |
Base |
1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter |
| 1964 |
Chevrolet |
Corvette |
Base |
1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter |
| 1965 |
Chevrolet |
Corvette |
Base |
1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter |
| 1966 |
Chevrolet |
Corvette |
Base |
1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter |
| 1967 |
Chevrolet |
Corvette |
Base |
1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter |
| 1968 |
Chevrolet |
Corvette |
Base |
1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter |
| 1968 |
Chevrolet |
Corvette |
Base |
1-5/8 inch Tube Diameter |
| 1969 |
Chevrolet |
Corvette |
Base |
1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter |
| 1970 |
Chevrolet |
Corvette |
Base |
1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter |
| 1971 |
Chevrolet |
Corvette |
Base |
1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter |
| 1972 |
Chevrolet |
Corvette |
Base |
1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter |
| 1973 |
Chevrolet |
Corvette |
Base |
1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter |
| 1974 |
Chevrolet |
Corvette |
Base |
1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter,1-5/8 inch Tube Diameter |
